Daniel barry miller



Di B. MILLER.

' RAILWAY AND LIKE MECHANICAL SIGNALING DEVICE.

APPLICATlQN'F1LED APR.23. 1918.

1,303,707. I I Patented May 13, 1919.

29 fig .1. q I

DANIEL BARRY MILLER, OF CLYDEBANIQ'SCOTLAND.

RAILWAY AND LIKE MECHANICAL SIGNALING DEVICE.

Specification of Letters Patent.

Patented May 13, 1919.

Application filed April 23, 1918. Serial No. 230,309.

To all whom it may concern:

Be it known that I, DANIEL BARRY of Clydebanl Scotland, have invented a certain new and useful Improved Railway and like Mechanical Signaling Device, of which the following is a specification.

The invention relates to mechanical signaling on rallways or tramcar systems, and belongs to the type of signaling apparatus which is operated by the wheels of a train or other vehicle passing it. The invention will be understood better by a reference to the drawings in which Figures 1, 2. and 3 show 1n detail the various parts of the mechanism and the working thereof.

Fig. 1 is an end view.

Fig. 2 is a plan view.

Fig. 3 is the elevation. i

The device consists of a horizontal shaft K, Figs. 1 and 2 of such length as maybe found suitable accordin to circumstances mounted in bearings J, Figs. 1, 2 and 3. Attached to each end of the shaft is a vertical lever. The one lever A, Fig. 1, is called the recording lever. The other lever which is called the operating lever E is shown at E,Fig. 1. To the end of this lever E is attached a roller B.

To put the device into position for use, the apparatus 'is bolted on to a sleeper of such length as may be found necessary placed un' derneath the rail L, as will suit the circumstances, and kept firm and in position, all as shown on Fig. 1. The apparatus ismade of malleable iron or cast steel and after being placed in position is covered with a wooden covering F to protect it from snow or other weather obstruction. The apparatus is placed in such a position that lever E is in a vertical position immediately inside the rail with the roller B in such close proximity to the rail as shown on said Fig. 1, that when the lever is in a vertical position the roller is raised a little higher than the rail as shown on Fig. 3 by the letter H. Attached to lever E are two steel springs C, Fig. 2. These springs are attached at their opposite ends to the ordinaryrailway sleepers by eye bolts D, Fig. 2. The object of these springs is to restore said lever E and maintain it when not in use in a vertical position.

The device is operated by the flange of the wheel of a passing train or car or any other vehicle having flanged wheels and running on rails coming in contact with the roller B attached to lever E;'the effect being that lever E is thereby moved from a vertical position to the position shown on Fig. 3 by the letter Gr, which shows the amount of travel of lever E. This travel is transmitted by the shaft K and is exactly repeated by re cording lever A. To lever A is attached a suitable wire or 'other connection not shown which travels to signal cabin, signal crossing, or other desired place and operates there by ringino a bell, showing a light or any other suitabl e or convenient manner. The device in addition to being applicable to railways is also suitableto tramway or other rail systems.

. The device differs from other inventions of a similar nature in respect that the mechanism is more simple and less liable to go out of order, that the action is direct from the wheel to recording lever A mounted coaxially with the operating lever having the attachment of roller B, and dueto the action of'the springs C, the impact is mitigated so that injury or damage to the device is rendered less likely than in devices where such precautions do not exist.

Claim:

. A mechanical signal including a lever, a bar, and a secondlever, the bar being mounted in such a manner that it is capable of rocking and having the lower ends of the levers secured oneto each end thereof, respectively,

DANIEL BARRY MILLER.

.Witnesses: JOHN LIDDLE, JOHN TRAIN LIDDLE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patenti. Washington, D. 0." 

